I would like to create an Object plugin and I would like the code to be able to show a bitmap, with optional alpha (transparency) adjustment, in the background of the viewports (perspective and orthogonal views).
What is the best way do do it?
I don't need actual code. Just what methods to override and what must I make to be sure it displays below all viewport objects.
Thank you very much in advance for any reply.
Rui Batista